Winding machine for producing tubular cops



Oct. 2, 1945. w. SIEGENTHALER 7 2,385,949

WIIiDING MACHINE FOR PRODUCING TUBULAR COPS Filed Aug. 51, 1944 3Sheets-Sheet 1 Her/' 4 Oct. 2, 1945 w. SIEGENTHALER 1 2,385,949

WINDING MACHINE FOR PRODUCING TUBULAR COPS I Filed Aug. :51, 1944 aSheets-Sheet 2 4 a FIG] Oct. 2, 1945. w. SIEGENTHALER 2,385,949

, WINDING MACHINE FOR PRODUCING TUBULAR COPS I Filed Aug.- 31, 1944 3Sheets-Sheet 5 Patented Oct. 2, 1945 WINDING MACHINE FOR PRODUCINGTUBULAR COPS Walfir Siegentlialer, Erlcnbach, near Zurich,

tlerland.

assimor to Maschlneniabrik Sshlrer, Erlenbach, Zurich, SwitserlandApplication August 31. 1944, Serial No. 552,059 In Switzerland August31, 1943 (Cl. 242-44) I 9 Claim.

This invention relates to winding machines for producing tubular cops.

In the winding machine for producing tubular cops according to theinvention a revoluble member carrying a, plurality oi winding spindlesmoves, in accordance with rotary feed steps, one winding spindle aftertheother'within the range of a stationary press piece in such mannerthat by action of said piece the tubular cop in progress of formation isadvanced on the winding spindle commensurate with its increase in lengthand at the same time a counter holder accommodating he front cop end isdisplaced, said counter holder bein in the form of a thread catch forthe purpose of catching the end of the thread oi a finished tubular copautomatically leaving the working position and passing said thread tothe winding spindle arriving at the working position.

By this means the production of tubular cops in automatic continuoussuccession by the machine is made possible in relatively simple manner.

An embodiment of the automatic cop winding machine according tothe'present invention is illustrated, by way of example only, in theaccompanying drawings in which Fig. 1 shows a longitudinal elevation ofthe cop winding machine according to this invention;

Fig. 2 is a corresponding top plan view;

Figs. 3 and 4 represent two front elevations with the parts of themachine in two different working positions;

Figs. 5 and 6 are larger scale illustrations serving for explaining thepassing over oi the winding thread from the finished tubular cop to thewinding spindle next to be wound; I

Fig. 7 shows a longitudinal rear elevation-of the machine relative toFig. 1;

Figs. 8 and 9 depict difierent operating conditions of the machinecompared with Fig. 7;

Fig. 10 is a top plan view of Fig. 9;

Fig. 11 depicts a different working condition of the machine comparedwith Fig. 10;

Fig. 12 is a detail view showing a particular construction of thecounter holder in an axial section with the tubular cop completelywound, and

Figs. 13 and 14 illustrate the manner in-whlch the thread is passed overfrom the completely wound tubular cop to an empty winding spindle.

The gear box I has arranged in front of its front end a circularrevoluble member 2 by means oi a central shaft 3. The revoluble member 2is provided with three holders 4 which are uniformly distributed overthe circumference of said member and each of which serves for receivinga winding spindle 5. The three winding spindles Ii provided aresuccessively moved into the working, that is, the winding position ofthe machine due to corresponding feed steps performed by the revolublemember 2.

On a spindle protruding through the shaft 3 a support 8 is arranged(Fig. 2) on which a press roller l is rotatably mounted. The parts 8 andl are further visible only in Figs. 3 and 4. By action of the pressroller l the tubular cop A in progress of formation is advancedcommensurate with the feed of thread material applied to the point ofthe cop and the resulting increase in length 01 the thread winding onthe respective windin spindle 5,. The winding thread passes through thethread guide 8 which reciprocates at a constant traverse. The numeral 9refers to an auxiliary thread guide which is mounted on a stationarysupport and is rendered operative only as the thread passes over from afinished tubular 'cop to the next winding spindle 5 taken into use.

The winding spindle I situated at the winding position is in oppositerelationto the counter holder Ii which receives the front end oi the copand is provided with several'front fingers ii, as shown in Figs. 5 and 6exclusively, which serve for temporarily guiding the winding thread. Thecounter holder II is supported by a slide i2 (Fig. 1) which is mountedon a carrier rod II and is connected with a flexible tension member itwhich passes over a guide roller I! which is arranged on the gear box iand is loaded by a weight It. By two superposed carrier bars, l1, l8

a slide I 9 is guided which is engaged by a sectional reclprocatory rod20. The reciprocatory rod 20 which is composed of several telescopicallyconnected parts and an intervening helical spring ii is connected at itssecond end with a crank 22 the associated shaft 23 of which is mountedon the gear box I.

0n the shaft 23 a gear 24 is fastened which meshes in a gear I! themounting shaft 28 of which protrudes through the gear box I and car-.ries at its other end a cam disc 21 which displaces by means of acooperative roller 28 a rod 29 the free end of which is provided with afunnel having a halvedshell as hereinafter termed a semi-cone iunnel 30.The rod 29 is partly inserted in a guide secured to the gear box i andis maintained in'bearing engagement with the cam disc 21 through theintermediary of the roller 28 by action of a helical spring not shown.At the rear end i'a'ce oi the gear box I the driving pulley I! of themachine is arranged.

The winding spindle having been moved into Y the working position by therevoluble member 2 is operatively connected with a driving shaft 33mounted on the gear box 'I (Fig. 2). After the tubular cop A has reachedthe prescribed length a clutch arranged in the gear box I isautomatically connectedin consequenceof which the crank 22 performs onerevolution, whereupon the crank is set at rest again. Due totheperformance of said revolution'by the crank 22 the slide I9 carriesout a. full reciproc'atingmovement. In the course of the advancestroke'of the slide IS the latter displaces the slide I2 against theaction of the weight I5, thereby to retract the counter holder II sothat the counter holder releases the completely wound tubularcop Awhich, however, still remains for a while on the winding spindleconcerned.

.Thereupon, the revoluble member 2 has automatically imparted thereto arotary feed impulse in the direction of the arrow shown in Fig. 3 due towhich thi member conveys an empty winding spindle 5 into the workingposition-where this spindle is coupled with the driving shaft 33. In-

cidental thereto the winding. spindle 5 carrying "the completely woundtubular cop is removed from the working position of the machine to thesemi-cone funnel on having been uncoupled from the driving shaft 33 asshown in- Fig. 4.

In the course of the rotational feed movement of the revoluble member2the return movement of the slide l9 into inoperative position isinitiated. In returning into'inoperative position the slide l9 takes thecounter holder II along with it, in consequence whereof the counterholder is moved into that position relative to the winding spindle 5,having been moved into the working position as shown inFigs. 5 and 6, inwhich the counter holder is rotated by the winding spindle 5 forconjoint movement.

In the course of the return movement of the slide I9 this slide hits theauxiliary thread guide 9 which is thus pivotally displaced against theaction of a torsion spring cooperating with said I thread guide from aposition of rest as shown in Fig. 10 into the position shown in Fig. 11so that the winding thread is moved within the embrace of the counterholder II as evident from Figs. 5 and 6. The winding thread is thengrasped by a finger II on the counter holder II and wound on therespective winding spindle 5 in the required manner by means of thethread guide 8 and thepress roller-l. The tubular cop B thus formed onthis spindle 5 contacts with the counter holder I I after having reacheda certain length, thereby to urge said holder backwardly so that thewinding thread slides off of the said finger II and is then no longerguided on the counter holder ll.

After a further tubular cop B has been wound the reciprocating movementof the slide I9 and the rotary feed movement of the revoluble mem-. her2 as well as the working operations occurring in conjunction therewithare repeated. As in connection therewith the cam disc '21 mounted on theshaft 23 associated with the crank 22 alcop B is conveyed toward thesemi-.frusto -conical shell or funnel and so forth. Obviously care istaken that the winding thread still extending between a completely woundtubular cop and the tubular cop next to be wound is severed at a pointof the intervening length of said thread, for example, by means of apair of scissors or in some other manner. I

From the foregoing it follows that the mach ne according to thisinvention produces one tubular cop after the other altogetherautomatically by continual operation.

The counter holder shown in Figs. 12 to lipossesses a holding socketwhich functions to receive the cop in course of formation for whichpurpose the respective end of the bore of the holdingsocket is conicallywidened. At its other end the holding socket 35 is mounted in a sleeve31 for smooth rotary movement by means of a ball bearing 35 which sleeveis firmly fastened to the cylindrical counter holder body II. The rearend of the holder body II is mounted by means of a bottom 38 on acentral stud 39 which is rotatably mounted in a holding device 40whichis fixed to the gear box of the machine by means of a supportingrodwork. On the rear end portion of the holder body II an outer rounddisc 4| is secured whereby a mass of an accordingly great inertia isformed compared with which the inertia of the mass of the holding socket35 is substantially smaller. The front end of the holding socket 35projects beyond the front end of the holder body II a certain distance.The conically tapering front end of the holder 35 constitutes a threadguide in a manner not shown. In connection therewith on the above saidtapering end of the holder body II, for example, spring fingers orspindle in the required manner.

hand the thread is torn at a length thereof exways also performs onerevolution at the same time, by means of the rod 29 thesemi-frustoconical shell or funnel 311 is accordingly pushed back andforth for the purpose of pushing the drops into a receptacle not shown.

Asthe revoluble member 2 performs its next rotary feed step thecompletely. wound tubular notches may be provided.

Fig. 14 serves for illustratively explaining the beginning of thewinding operation. As will be seen the thread being indicated inchain-dotted lines is so laterally diverted from its course by theauxiliary thread guide 9 as to be situated within the range of the frontend of the holder body II and the holding socket 35 into which thewinding spindle 5 extends. The thread thus reaches the winding spindle 5via the end of the supporting socket 35 projecting beyond the holderbody I I and is, after having been grasped, that is, caught by therotating holder, wound about the empty winding spindle 5. Due to leadingof the holding sccket 35 on the holder body I l the thread is tautenedbetween the catching point on the holder body II and the supportingsocket 35, in consequence whereof the thread is torn at the tautenedlength after some windings have been placed on the winding spindle 5.

By this means thread material has been placed on the winding spindle insuch an amount that as the automatical mechanical driving of the windingspindle 5 begins the thread is wound on the tending from the finishedtubular cop to the holder due to the holder rotating. Thereupon, thethread winding, that is, the tubular cop in progress of formation on thewinding spindle enters into cooperation with the conical portion of thebore of the supporting socket 35.

On the formation of the respective conical end of the spool and thebeginning of the cylindrical spool portion the tubular cop in progressof formation, the second end of which cooperates with a press roller notshown, forces after a certain length has been reached the counter holderback- On the other wardly, as will be seen in Fig. 12'. As soon as thethread winding correspondingly engages with the supporting. socket 35said socket isturned alon with the thread winding, whereby a turningmoment is also set up in the holder body ll inclusive of the round disc4i. a

The supporting socket 35 then runs at the same speed of revolution asthe winding spindle 5 and the rotational speed of the block formed bythe parts Ii and H increases up to a maximum which dependent uponcircumstances may be more or less in the order of the rotational speedof the supporting socket 35. By virtue of the bearing 36 being insertedbetween the supporting socket 35 and the holder body II as well as theinerta of the relatively great mass formed by the: parts II and I, theblock il, 4| begins to rotate only by and by, when the machine isstarted, and lags behind the rotational movement of the supportingsocket 35 of considerably lesser weight at least at the beginning,. sothat the supporting socket 35 then leads on said parts.

This condition of movements is maintained also during the exchanging ofwinding spindles at the working position of the machine for the reasonthat on discontinuation of the contacting engagement between the tubularcop and the supporting socket 35 the drive of this socket isinterrupted,

- whereupon the speed of revolution of the support-- ing socket 35 aswellas that of the block H, II decreases, whereas due to effect ofinertia the supporting socket 35 as well as the block ii, 4| keep onrotating in order to automatically initiate the winding of an emptywinding spndle again.

In consequence of the counter holder returning in automatic fashion thisholder'approaches on the next empty winding spindle having arrived inworking position as shown in Fig. 13 and enga es said spindle as shownin Fig. 14. 'Ihereupon. the thread is guided by means of-the auxiliarythread guide 9 within the range of the front end of the holder body iiproviding a thread catch, and then the working incidences describedfollow each other again, that is, are repeated. Therefore, the thread iswound anew on the empty winding spindle and is tautened between thespindle and the holder body Ii providing a thread catch and eventuallytorn at the tautened portion or in certain circumstances pulled out ofthe holder body I. v In proceeding in themanner described the result canbe obtained that at the beginning as well as at the end of the windingof the tubular cop a relatively only short piece of thread, is leftloose, that is, to project, the presence of which facilitates theworking with the tubular c'op in the loom, that is, the orderly placingof the weft thread in the shuttle, when the cop is put into such a use.v

The counter holdef'constructed in the manner hereinbefore described canbe applied also to tubular cop winding machines operating by means ofwinding spindles extending allthe way through the winding. Further itisnot indispensable that the winding spindles being exchanged at theworking position are arranged on a rotatively feedable carrier member.

Iclaim:

1. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine. a feedable member carryingseveral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles stationarily arranged for advancing the tubularcop winding being wound at said working position commensurate with itsgrowth on the respective winding spindle, a counter holder displaceablyarranged in opposition to said working position for bearing against thefront end of said tubular cop winding, and a thread catch provided onsaid counter holder for catching the thread extending to the completelywound tubular cop as said cop automatically discharges from said workingposition, and passing -over said thread to the winding spindle nextarriving at said working position.

2. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carryingseveral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles individually to said working position on beingcorrespondingly rotatively fed, a press member stationarily arranged foradvancing the tubular cop winding being wound at said working positioncommensurate with its growth on the respective winding spindle, areciprocable counter holder displaceably arranged in opposition to saidworking position for bearing against the front end of said tubular copwinding, a thread c tchin fi r provided on said counter holder, and anauxiliary thread guid arranged for being automatically pivotallydisplaced as said counter holder returns into initial position formoving the thread extending to the completely wound tubular cop withinthe range of said thread catching finger for said finger to catch saidthread as said cop automatically discharges from said working positionand to the winding spindle next arriving at said working position.

3. vIn a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carryingseveral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles individually to said working position on beingcorrespondingly rotatively fed, a press member stationarily arranged foradvancing the tubular cop winding being-wound at said working positioncommensurate with its growth on the respective winding spindle, areciprocable counter holder displaceably arranged in opposition to saidworking position for bearing against the front end of said tubular copwinding, a slide biassed v toward initial position pushing said counterindividually to said working position on being holder out of engagementwith the completely wound tubular cop and subsequently returning intosaid initial position, a thread catching finger provided on said counterholder, and an auxiliary thread guide arranged for being automaticallypivotally displaced as said counter holder returns into initial positionfor moving the thread extending to the completelywound tubular copwithin the range of said thread catching finger for said finger to catchsaid thread as said cop automatically discharges from said workingposition and to pass over said thread to the winding spindle nextarriving at said working position.

4. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carrying ev.eral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles individualiy to said working position on beingcorrespondingly rotatively fed, a press member stationarily arrangedforadvancing the tubular cop winding bein ound at said working positionto pass over said thread c ps,

commensurate with its growth on the respective winding spindle, acounter holder displaceably arranged in opposition to'said workingposition for hearing against the front end of said tubular cop winding,a thread catch provided on said counter holder ,for catching the threadextending to the completely wound tubular cop as said cop automaticallydischarges from said working position, and passing over said thread tothe winding spindle next arriving at said working position, and asemi-frusto-conical shell arranged for coassume dividually to-saldworking position on being cor respondingly rotatively fed, a pressmember sta tionarily arranged for advancing the tubular cop operationwith said revoluble member for receivwinding spindle, acounter'. holderdisplaceably arranged in opposition to said working position, asupporting socket included in said counter holder for bearing againstthe front end of said cop winding, and a rotatable holder body rotatablycarrying .said supporting socket, said body providing a thread catch,and said supporting socket projecting beyond said holder body in thedirection toward said working position.

6. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carryingseveral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles individually to said working position on beingcorrespondingly rotatively fed, a press member stationarily arranged foradvancing the tubular cop winding being wound at said workin positioncommensurate with its growth on the respective winding spindle, acounter holder displaceably arranged in opposition to said workingposition, a supporting socket included in said counter holder forbearing against the front end of said cop winding, a rotatable holderbody rotatably carrying said supporting socket, said body providing athread catch, and said supporting socket projecteral winding spindlesrevolubly. arranged for intermittently conveying said windin spindlesinr in beyond said holderbody in the direction toward said workingposition, and antifrict on bearing means interposed between said holderbody and said supporting socket. 1

'1. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carryingseveral winding spindles revolubly arranged for intermittently conveyingsaid winding spindles inwinding being wound'at said working positioncommensurate with its growth on the respective winding spindle, acounter holder displaceably arranged in opposition to saidworkingposition, a supporting socket included in said counter holder forbearingagainst the front end of' said cop winding, a rotatable holderbody rotatably carrying said supportin socket, said body providing athread catch, and said supporting socket proiecting beyond said holderbody in the direction toward said working position, a sleeve inserted insaidholder body, and antifriction bearing means interposed between saidsleeve and said supporting socket.

8. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a i'eedable member carryingsevdividually to said working position on being correspondinglyrotatively fed, .a press member stationarily arranged for advancing thetubular cop winding being wound at said working position commensuratewith its growth on the respective winding spindle, a counter holderdisplaceably arranged in opposition to said working position, asupporting socket included in said counter holder for bearingagainst thefront end of said copwinding, acylindrical rotatable holder body rotatably carrying said supporting socket and having a rear end wall, astud on which said end wall is centrally mounted, said body having athread catch, and said supporting socket projecting beyond said holderbody in the direction toward said working position. I

9. In a winding machine for producing tubular cops, a working positionfor winding tubular cops in said machine, a feedable member carryingseveral winding spindlesv revolubly arranged for in:-' termittentlyconveyingsaid winding spindles individually to said working position onbeing correspondingly rotatively fed, a press member stationarilyarranged for advancing the tubular cop winding being wound at saidworking position 4 commensurate with its growth on the respectivewinding spindle,'a counter holder displaceably arranged in opposition tosaid working position, a supporting socket includedin said' counterholder for bearing against the front end of said cop winding, acylindrical rotatable holder body rotatably carrying said supportingsocket and having a rear end wallbeing mounted on a central stud, asleeve inserted in said holder body,

and antifriction bearing means interposed between said sleeve and, saidsupporting socket.

WALTER SIEGENTHALER.

